1975 Ford 4400 tractor

[pmurp57]

Hello I need help with a 1975 Ford 4400 industrial tractor with a 201 motor the governor seems to be fully engaged, will edle if I disconnect the linkage. I started with the ignition system changed the coil set the points to .025 put the correct spark plugs in new cap and rotor, rebuilt the carb

 

[used red MN]

Hello I need help with a 1975 Ford 4400 industrial tractor with a 201 motor the governor seems to be fully engaged, will edle if I disconnect the linkage. I started with the ignition system changed the coil set the points to .025 put the correct spark plugs in new cap and rotor, rebuilt the carb

Hello pm…, welcome to YT! What was the condition of the tractor before you performed these repairs, such as it was a running machine that you owned for some time or was this a machine you are attempting to get running after setting etc.? If it was running fine before you did the carburetor work there is a possibility the carb was assembled incorrectly. The main cause of this would be if you removed the throttle plate from the throttle shaft then assembled it at the wrong angle in the carb bore in relation to which way it should turn to open the throttle and return it to the closed, idle position resting against the stop screw.

 

[pmurp57]

It has never run correctly a couple different people worked on it I purchased it about 3 weeks ago would not stay running someone put plugs from a modern engine I believe they were Platinum gaped at .060 and were carbon fouled that also Frankensteined the carburetor combining a new carb from Amazon probably from a smaller motor, I didn't remove the throttle plate

 

[used red MN]

Frankensteined the carburetor combining a new carb from Amazon probably from a smaller motor, I didn't remove the throttle plate

Since you dont know if that is the right carburetor for that tractor You will have to determine if the lever on the carb throttle shaft is oriented and configured properly to work correctly on your tractor. With the engine shut off when moving the throttle you should be able to figure out which direction the linkage hooking to the carburetor is moving to speed up the engine or slow it to idle to see if they correspond.
When running hold the rod from the governor in your hand. As the engine speeds up the rod should have less pressure on it and move towards the idle position.

 

[pmurp57]

Ok thanks I'll give that a try,

 

[rrlund]

Go down to the Oliver forum and read my post "1600 gas governor" and see if that's anywhere near the problem that you're having. I can't quite seem to get through my head just what your problem is.

 

[pmurp57]

I read your post doesn't ring any bells for me

Go down to the Oliver forum and read my post "1600 gas governor" and see if that's anywhere near the problem that you're having. I can't quite seem to get through my head just what your problem is.

I've read your post doesn't ring any bells for me, I worked on it this morning double checked my previous work it checks out fine starting play with the carb again and made it do other stupid stuff I believe it needs a new one

 

[used red MN]

starting play with the carb again and made it do other stupid stuff I believe it needs a new one

Made it do “other stupid stuff” tells us nothing. Maybe you didn’t intend information in this reply to lead anyone to help you. What ever that was it has lead you to say you need a “new one” do you think that is a carb or governor?

 

[sotxbill]

Couple of thoughts.... there is an aftermarket carb... where you can turn the bell crank down instead of up.. and it will make the tractor run full blast. Got one like that on my 4400 backhoe. So I have to take the two screws back out of the butterfly and flip the shaft over and reinstall it. I do this everytime I rebuild it. one model carb even has a floating bell crank that is tighten on to the shaft so that one is really easy to flip... When the linkage is flipped, the tractor starts and then gos to full run as the govenor trys to pull it back to idle, but since the carb shaft now operates in the reverse direction, it goes to full.


THEN there is the govenor linkage that someone may have messed with.

 

[pmurp57]

Yep I'm looking at both of those ideas

 

[pmurp57]

Where's a good place to purchase a new or rebuilt carb id like something reliable

 

[pmurp57]

Where's a good place to purchase a new or rebuilt carb id like something reliable

Bought a new carburetor at Steiners installed it engine is hunting after it warms up and running rich, I see some carburetor icing

 

[rrlund]

Have you adjusted the jets?

 

[used red MN]

Bought a new carburetor at Steiners installed it engine is hunting after it warms up and running rich, I see some carburetor icing

Have you adjusted the jets?

???
Carb icing is normal on these old tractors with the carb out in the open. The chilled surfaces that cause it are a product of the pressure drop across the venturi in the carb and the gas atomizing. Hold the throttle shaft/lever on the carb in one position if engine still runs unsteady the carb adjustments are off. Have you set the timing to spec with a timing light?

 

[pmurp57]

???
Carb icing is normal on these old tractors with the carb out in the open. The chilled surfaces that cause it are a product of the pressure drop across the venturi in the carb and the gas atomizing. Hold the throttle shaft/lever on the carb in one position if engine still runs unsteady the carb adjustments are off. Have you set the timing to spec with a timing light?

I did I'm getting ready to change the points and condenser I know carburetor icing is normal in the winter my Moline did is also

 

[pmurp57]

I did I'm getting ready to change the points and condenser I know carburetor icing is normal in the winter my Moline did is also

Have not been in side this carburetor not sure where to find new jets it a new zenith carb not built in the usa

 

[used red MN]

I did

What?? Held carb throttle rod steady or set the timing?
So this carb must not have an adjustable main jet? I don’t know where you could get jets since McDonalds Carbs maybe. Sounds like this is an off brands knock off so if the new jets would have the correct threads is anybody’s guess.

 

[pmurp57]

What?? Held carb throttle rod steady or set the timing?
So this carb must not have an adjustable main jet? I don’t know where you could get jets since McDonalds Carbs maybe. Sounds like this is an off brands knock off so if the new jets would have the correct threads is anybody’s guess.

I agree I'm looking for a needle and main jet to put in so it can be adjustable I did hold the linkage steady and the timing is set to 6° according to the manual

 

[pmurp57]

I agree I'm looking for a needle and main jet to put in so it can be adjustable I did hold the linkage steady and the timing is set to 6° according to the manual

Thanks for all the wisdom this was a good sounding board I got to the root of the problem it was mostly, other people making changes to the carburetor linkages and governor rod length